1969, James Earl Ray pleaded guilty in Memphis to assassinating Martin Luther King Jr. (Ray later repudiated that plea, maintaining his innocence until his death.)

1973, the Pink Floyd album "The Dark Side of the Moon" was released in the U.S.

2009: A gunman, 28-year-old Michael McLendon, killed 10 people, including his mother, four other relatives and the wife and child of a local sheriff's deputy across two rural Alabama counties before committing suicide.